Improvement in road-scrapers



A. THOMPSON.

ROAD-SCRAPER.

Patenfied July 3, 1877.

WITNESSES 0% vzmn:

ATTORNEYS.

NJ UERS, FHDTO LITNOGRAPH UNITED STATES PATENT OFFICE AHIRA THOMPSON, OFHARMONY, ILLINOIS.

IMPROVEMENTJN ROAD-SCRAPERS.

Specification forming part of Letters Patent No. 192,720, dated July 3,1877; application filed May 5, 1877.

The object of this invention is to furnish an improved machine forfilling up the ruts and hollows of a road and keeping it smooth, whichshall be so constructed that it may be attached to an ordinarywagon,which will work upon even or uneven ground, which can be adjusted toscrape wide or narrow, light or heavy, light upon one side and heavyupon the other, and light or heavy upon the inside, and heavy or lightupon the outside, and which shall be simple in construction andconvenient in use.

The invention consists in the combination of the bars, the perforatedplates, and the draft-bars, with the scrapers and the running gearing ofa wagon; and in the combination of the loops or keepers, the chains, thelevers, the cross -bar, and the standards, provided with the books, withthe scrapers, and with the bars, attached to the running gearing of awagon, as hereinafter fully described.

A represents the rear wheels, B represents the fore wheels, 0 the rearaxle, D the fore axle, E the rear bolster, F the fore bolster, G therear hounds, H the reach, and I the tongue, of an ordinary wagon, aboutthe construction of which parts there is nothing new. J are twolongitudinal bars, the ends of which are attached to the ends of thebolsters E F, and to the forward ends of which is attached a cross-bar,K. To the end parts of the crossbar K are bolted short cross-bars L,which have metallic plates M bolted to their under sides. The rear partsof the metallic plates M project and have holes formed in them toreceive the hooks formed upon the forward ends of the bars N. Severalsets of holes are formed in the plates M to receive the hooks of thebars N, so that the said bars N may be addjusted outward or inward, asmay be desire l The bars N are arranged in pairs, and the rear ends ofthe bars of each pair are curved downward, and are attached to ascraper, 0. If desired, the bars N, at their curve or angle, may bejointed and the draft-strain upon the scraper sustained by brace-rods1%, attached to said scraper and to plates attached to the forward partof the said bars N.

The scrapers 0, four of which are used, two upon each side, are formedby attaching a metal plate to a wooden beam in the usual way. The outerbar N of'each pair is formed in two parts, the adjacent ends of whichhave hooks formedupon them, and are hooked into holes in metal plates P.The metal plates P are bolted to wooden blocks Q, which have groovesformed in their inner sides to receive the bars N.

By this construction the outer bars N may be shortened or lengthened, togive a greater or less inclination to the scrapers O, or to incline themto move the dirt outward OI lll ward, as may be desired.

To each scraper O is attached a long keeper, R, to receive the lower endof a chain, S, the upper end of which is attached to a lever, T.

vThe forward ends'of' the levers T are pivoted to the crossbar L. Therear ends of the le-- vers T rest upon a cross-bar, U, attached to thelongitudinal bars, or upon'hooks V attached to the sides of thestandards W, attached to said cross-bar U.

This construction enables the scrapers to be adjusted to scrape light orheavy, as may be desired.

Having thus described my invention, [claim as new and desire to secureby Letters Patent-- l. The combination of the bars J K L, the perforatedplates M, and the bars N, with the scrapers O, and the running gearingot" a wagon, substantially as herein shown and described.

2. The combination of the loops or keepers R, the chain S, the levers T,the cross-bar U, and the standards W, provided with the hooks V, withthe scrapers O and with the bars J, attached to the running gearing of awagon, substantially as herein shown and described.

AHIRA THOMPSON.

' Witnesses:

J. B. BABOOGK, G- P. FILLMORE.

